DIY Cupcake Machine
During quarantine, some people learned how to bake cupcakes. Others, like YouTuber Skyentific, spent that time creating a DIY machine to bake them for him. The robotics engineer built an Arduino-controlled pastry chef that replicated the cupcake process including pouring the dough, baking, and topping with icing. Although the presentation leaves a lot to be desired, the taste is there.